00537nam a22001217a 4500008004100000040005500041080001500096245017900111260005400290300002000344650002500364653002600389230421b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a666.9 bJ4  aProceedings of the third international symposium on the chemistry of cement London 1952 c/ Building Research Station of the Department of Scientific and Industrial Research   aLondon: bCement and Concrete Association, c1954  axxxviii, 870p.   aChemical technology   aTricalcium aluminate